KAPTON:

Kapton® has more than 35 years of proven performance as the flexible material of choice in applications involving very high, 400°C (752°F), or very low, -269°C (-452°F) temperature extremes. Kapton is used in a wide variety of applications such as substrates for flexible printed circuits, transformer and capacitor insulation and bar code labels.

DuPont makes several types of Kapton® film. Types HN, FN, and VN are used most commonly.

•Type HN Film
Kapton® Type HN is a tough, aromatic polyimide film, exhibiting an excellent balance of physical, chemical, and electrical properties over a wide temperature range, particularly at unusually high temperatures. Chemically, its polyimide polymer makeup is the result of a polycondensation reaction between pyromellitic dianhydride and 4,4.diaminodiphenyl ether. Kapton® HN is available in the following gauges: 30 (7.5 µm), 50 (12.7 µm), 100 (25.4 µm), 200 (50.8 µm), 300 (76.2 µm), and 500 (127 µm). Other gauges, such as 75 (19.1 µm) and 400 (102 µm), are available by special request.

• Type FN Film
Kapton® Type FN film is a heat sealable grade that retains the unique balance of properties of Kapton® Type HN over a wide temperature range. This is achieved by combining Type HN with DuPont Teflon® FEP fluorocarbon resin in a composite structure.

Type VN Film

• Type VN film
this is the same tough polyimide film as Kapton®Type HN Film, exhibiting an excellent balance of physical, chemical, and electrical properties over a wide temperature range, with superior dimensional stability at elevated temperatures. This product is available in 50 (12.7 µm), 75 (19.1 µm), 100 (25.4 µm), 200 (50.8 µm), 300 (76.2 µm), and 500 (127 µm) gauges.